Internal-combustion engine.



A; I. EAGLE.

INTERNAL COMBUSTION ENGINE.

APPLICATION FILED AUG. 25, 1913.

Patented Sept. 22, 1914 2 BHEETSSHBET 1.

THE NORRIS PETERS C0,. PH01tJ-LlTHO.. WASHINGIUN. D c.

A. I. EAGLE.

INTERNAL COMBUSTION ENGINE.

APPLIOATION FILED AUG. 25, 1913.

1 1 1 252 I Patented Sept. 22, 1914.

2 SHEETS-SHEET 2.

WITNESSES." INVENTOR.

A TTORNE Y.

- THE AORRIS PETERS 60.. PHOTO-LITHQ. WASHINGTON. n r:

fineness: rg nnenn,or'sroo ron; U'rAii.

inrnnnnn-oorlmnsrron ENGiNE.

a f gn -man a Ai gun 25; 9113. seriain fismssh citizen of the United States; residing, at

Stocktonp in the county of, Toelle and State of: Utah, have, invented certainnew and use-' fnl Improvements in Internal-Combustion lingines ofwhich thefollowing is a specifi Ycationfi 1 9. i 3 n Myanventlonrelatesto nternal combos: tic-n engines, and. has forits object to jprovide a connection between the piston and crank shaft which isautomatically ad]ustable in length. and by; theuse of whichgthe greatest possible lalnbiin't of-Yeornpression may *of this application and pointed mi ppended claims. I s

be had on the'explosive gases tlleengine cylinder, and said compression"maintained until the crank shaft 'l1as-passed]several de grees beyond the vertical center before the explosion occurs, whereby greater power ma be developed for generated 'throi'lgh said enginewith -,a given amount of fuel than has previously been possible. These objects I accomplish with the device illustrated 1n the accompanying drawings; in which similar letters of reference indicate like parts throughout the several figures, and as de scribed in thespecihcation formlng a part Figure 1 is a vertlcal section 'through the engine on'line t t Fig. 2, andwith the cam:

lever in elevation. Fig. is fragmentary View. of a longitudinal section of the crank case and shaftfwit-h portions of the piston rod and connections in elevation. Fig. 3 is a side and front elevation of" the cam lever.

A Fig. 4 is a plan viewj of one ofthe cam disks.

. Fig. 5 is a section through oneofsa'id cam,

Y a As is wellknown the power generated by disks on line awe-of Fig. 1. Fig.6 is an end elevation of the eccentric camg Fig. 7 is a longitudinal section through the cam on line ze of Fig. 6.-.

firingoompressed gases is the strongest the instant after ignition and when the compression is the greatest. One of the problems to be solved by nventors and users of internal combustion engines is to devise ,mechanism that will utilize to its fullest extent the initial expansion of highly compressed explosive gasesi' Heretofore ,and

with the connections now in use betweenthe crank shaft 'andthe piston head, the ignition of the compressed gas takes place slightly before the crank arm andpiston rod have I been in longitudinal alinement or have eccentric passed dead center. The force ofthe explosion is appliedalmost as a blow on the end of the crank arm-with very little of the force applied on the'cran'k shaft and the ob ect of my Invention is (to applythe force of the explosion to the crank arm later in that revolution, of the crank shaftin order that-the'force-of the explosion will be applied to the crank shaft through the crank crank armsfl with the piston. The ordinary crank shaft l5,gcarryinga pulley ,6,"is -rotated by said arms 4 and is mounted in the I case 7. Pivotally and slidably mounted on each'of said crank arms 4 is a cam; lever 8. Said levers 8 are'connected by an eccentric rod9, that is mounted inbearings in the outer ends of said cam levers. end of each of said cam levers has a cam roller 10 mounted thereon, which is made to- The other 3 h operate within a cam tractor channel 11' cut in the, face of a cam disk 12. The lower or shaft end of said piston rod3 is provided with the usual strap arms 13, which inclose the'ieccentric' cam ll. Saidgcam has a longitudinal opening 16 therethrough within which is operated the saideccentric rod 9 which rod acts as the pivots for one end of the cam levers 8. The cam on the shaft 15 rotates said eccentriccam 14. Said strap arms 13--having suitable fastenings-and cam 14 form the eccentric by which said rod 3 and the said shaft 15 are connected. As will be apparent whenthe said shaft 15 is rotated by the crank arms 4:; a partial rota.- tion will drive the piston 2 to the upper or outer end of said cylinder as shown in Fig. 1. With the other members in position as shown in said Fig. l, thecontinuance of the forward movement or rotation of said shaft in the direction of the arrow w will drive the eccentric cam 14 around on said shaft 15 as the axis and allow the crank arms 4: to

assume a position similar to thatshown in that the explosion will occur at thisperiod in the rotation of the shaft 15 much greater power will be; generated as the leverage of the crank arms e'is much greater when in @qpies of this patent may be obtained for five cents each, by addressingthat position than Would have been should.

the explosion have occurred when the arms 4 were practically in alinement with said rod' I thus provide an automatic means for lengthening and shortening the connection between the shaft 15 and the piston rod, and; one that is sufliciently strong to stand the? blow of the explosion and in which the change in length may be so timed With the other parts of' an internal combustion engine, that the greater portion of the force of an explosion will be applied to rotate the shaft as a lever. In the drawings the length of the lever is equal to the base of a right angled triangle with the sides shown as lines drawn from the point of connection of the piston 2 and rod 3 to the axis of'the shaft 15 and centrally through said rod-3 and projected to out said base line, as shown 20 i T v i.

at a-bc.

Having thus described invention I desire to secure by Letters Patent and claim 1. An internal combustion engine consisting of an explosion cylinder; a piston operated therein; a crank shaft; aypiston rod pivoted to said piston; strap arms on one Washingtor1' ,D.(3..

end of said rod; an eccentric cam carriedin said arms and rotatable on said crank shaft;

and means to automatically move said cam on saldshaft whlch means consists of levers pivoted to said cam, and disks mounted on said crank shaft to move said levers.

2. An internalcombustion engine consist mg of an explosioncyllnder; a plston operati've therein;;a crank shaft; arms on said shaft; disks secured on said shaft and rotatable therewith having a cam track in the face of each; cam levers pivoted on said arms and movable by said disks; a piston the Commissioner of ratents; 

